Chemistry-Biochemisty Practice Quiz (highlight between lines to see answers)
1._ is anything that has mass and weight. Matter 2.What is the quantity of matter an object has? Mass 3.What are the 4 elements of life? Nitrogen, Carbon, Oxygen, and Hydrogen 4.What is the smallest particle of an element? An Atom 5.The number of protons ??? the number of electrons Equals 6.The atomic number is ___. The number of electrons and electrons 7.What is an Isotope? Atom where # of electrons and protons are equal, nuetrons different 8.Contrast Covalent and Ionic Bonds. Electrons shared in Covalent, Electrons transferred in Ionic 9.What are 5 properties of water? Strong Cohesion & Adhesion forces, Thermal Energy storage, Dissolves most things, Polar, Hydrogen Bonding 10.What is the relationship between solutions, solvents, and solutes? A solution is a solute and a solvent mixed together; the solvent is what the solute is being dissolved in 11.What makes something Acid, and what makes something Base? Acid = # of hydrogen ions is greater than hydroxide ions / Base = More hydroxide ions than hydrogen 12.What is the function of Carbohydrates, Proteins, Lipids, and Nucleic Acids? Carbohydrates provide the body with energy, proteins help build body mass, lipids build cell membranes, nucleic acid stores important information for cell 13.What are the four molecules of life? Carbohydrates, Proteins, Lipids, Nucleic Acid 14.What are organic compounds composed of (simple sugars)? Carbon, Hydrogen, Oxygen 16.Compare Monosaccharides, Disaccharides, and Polysaccharides. Monosaccharides is one molecule, Disaccharides (double sugar after condensation reaction) have 2, and Polysaccharides (more complex) have 3 or more 18.What are the building blocks of protein and which functional groups does it contain? Amino Acids/ carboxyl and amino 19.What protein acts as a catalyst? Enzymes 20.What are the building blocks of lipids and which functional group does it contain? Fatty Acids/ carboxyl 23.What is the functional group of nucleic acid? Hydroxyl and Amino 24.What does DNA stand for, what is it made of? Deoxyribonucleic acid, phosphate group, sugar, nitrogenous base 25.What does RNA stand for? Ribonucleic acid 26.What are the three functional groups? Hydroxyl (-OH), Amino (NH2), Carboxyl (-COOH)
Chemistry-Biochemisty Practice Quiz (highlight between lines to see answers)
1. _ is anything that has mass and weight.
Matter
2. What is the quantity of matter an object has?
Mass
3. What are the 4 elements of life?
Nitrogen, Carbon, Oxygen, and Hydrogen
4. What is the smallest particle of an element?
An Atom
5. The number of protons ??? the number of electrons
Equals
6. The atomic number is ___.
The number of electrons and electrons
7. What is an Isotope?
Atom where # of electrons and protons are equal, nuetrons different
8. Contrast Covalent and Ionic Bonds.
Electrons shared in Covalent, Electrons transferred in Ionic
9. What are 5 properties of water?
Strong Cohesion & Adhesion forces, Thermal Energy storage, Dissolves most things, Polar, Hydrogen Bonding
10. What is the relationship between solutions, solvents, and solutes?
A solution is a solute and a solvent mixed together; the solvent is what the solute is being dissolved in
11. What makes something Acid, and what makes something Base?
Acid = # of hydrogen ions is greater than hydroxide ions / Base = More hydroxide ions than hydrogen
12. What is the function of Carbohydrates, Proteins, Lipids, and Nucleic Acids?
Carbohydrates provide the body with energy, proteins help build body mass, lipids build cell membranes, nucleic acid stores important information for cell
13. What are the four molecules of life?
Carbohydrates, Proteins, Lipids, Nucleic Acid
14. What are organic compounds composed of (simple sugars)?
Carbon, Hydrogen, Oxygen
16. Compare Monosaccharides, Disaccharides, and Polysaccharides.
Monosaccharides is one molecule, Disaccharides (double sugar after condensation reaction) have 2, and Polysaccharides (more complex) have 3 or more
18. What are the building blocks of protein and which functional groups does it contain?
Amino Acids/ carboxyl and amino
19. What protein acts as a catalyst?
Enzymes
20. What are the building blocks of lipids and which functional group does it contain?
Fatty Acids/ carboxyl
23. What is the functional group of nucleic acid?
Hydroxyl and Amino
24. What does DNA stand for, what is it made of?
Deoxyribonucleic acid, phosphate group, sugar, nitrogenous base
25. What does RNA stand for?
Ribonucleic acid
26. What are the three functional groups?
Hydroxyl (-OH), Amino (NH2), Carboxyl (-COOH)